OFFSET
1,1
LINKS
R. J. Mathar, Table of n, a(n) for n = 1..501
FORMULA
MATHEMATICA
Prime[#]&/@Select[Range[600], Prime[#]+Prime[#+9]==Prime[#+3]+Prime[#+6]&] (* Harvey P. Dale, May 10 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved